how glass is made
how glass is shaped
some properties of glass
Answers
Answer:
Believe it or not, glass is made from liquid sand. You can make glass by heating ordinary sand (which is mostly made of silicon dioxide) until it melts and turns into a liquid. ... It's like a cross between a solid and a liquid with some of the crystalline order of a solid and some of the molecular randomness of a liquid.
Anything that touched the surface of the hot glass could leave a mark. The first curved windows were made by slumping. A glass sheet was placed in a gravity mold that touched only its edges, then was heated from above until it sagged into shape.
The main characteristics of glass are transparency, heat resistance, pressure and breakage resistance and chemical resistance.
Hey mate here is your answer
1. Glass is made from liquid sand. More specifically, glass is made by heating ordinary sand (mostly composed of silicon dioxide SiO2) until it melts and turns into a liquid.
2. A glass sheet was placed in a mold that touched only the edges, then was heated until it came into shape.
3. The main properties of glass are transparet, heat resistance, pressure and chemical resistance.